J. Korean Ceram. Soc. > Volume 20(3); 1983 > Article
 Journal of the Korean Ceramic Society 1983;20(3): 250.
 고납유리의 X선 조사에 따른 Browning 현상에 관한 연구 박용완, 강원호1 한양대학교 공과대학 무기재료공학과1한양대학교8 공과대학 무기재료공학과 A Study on the Brown Coloration of the High Lead-Silicate Glass by X-ray Irradiation ABSTRACT The effects of the various amount of $CeO_2$ $MnO_2$ and $Fe_2O_3$ added to the high lead-silicate glasses on the X-ray induced coloration were studied. The light transmissions and chromaticities of the glasses before and after exposing to X-ray radiation were measured to investigate the effects by additivies. The results are as follows ; 1. High lead-silicate glass added $CeO_2$ or $MnO_2$ has a little effect on the transmission but has a considerable effect on the chromaticity. The chromaticies of 56.6wt% PbO content glasses were changed as 3-7 times as those of 28.3wt% PbO content glasses. 2. By the X-ray irradiation glasses containing 0.2-0.5wt% $CeO_2$ were changed the least in chromaticity that is the most effective in preventing the X-ray induced coloration. 3. By X-ray irradiation $MnO_2$ reduced the transmissions and showed purple coloration. 4. Transmission change amounts of the glasses added $CeO_2$ and $Fe_2O_3$ were less than those of the glasses added $CeO_2$ alone by X-ray irradiation.
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